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Reedy Sonic 540 M4 Brushless Motor 7.5T Modified

Reedy Sonic 540 M4 Brushless Motor 7.5T Modified

Brand: Reedy

Part No: AS27441

£116.37 RRP £122.49

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The Reedy Sonic 540 M4 Brushless Motor 7.5T Modified (AS27441) advances competition 1:10 performance with the linear powerband and strong mid-range feel associated with Reedy’s modified motors. Building on the 540-M3, the M4 relocates the inner bearing into the can to more precisely align the rotor within the magnetic field, helping reduce noise and vibration.

Externally, the shortened can centralises weight within the chassis and trims approximately 5–10g, while refinements to the can design aid cooling. A balanced, high-strength rotor delivers fade-free performance, with optional rotors available to fine-tune for specific track conditions. Precision stainless steel ball bearings accommodate high RPM loads, and adjustable timing provides setup flexibility. Built to ROAR/EFRA/IFMAR specifications.

Features

  • CNC-machined lightweight can
  • Aluminium end cap
  • Lightweight design
  • Low-resistance, silver-plated solder tabs
  • Optimised air cooling
  • Dual precision ball bearings
  • Balanced rotor
  • High-strength magnet
  • Adjustable timing
  • Completely rebuildable
  • Competition proven
  • Built to ROAR/EFRA/IFMAR specs

Specifications

  • Cells: 1–2S LiPo
  • Diameter: 35.9 mm
  • Length: 50.3 mm
  • Shaft Diameter: 3.15 mm
  • Weight: 160–170 g

REEDY SONIC 540 M4 BRUSHLESS MOTOR 7.5T MODIFIED

After months of development, Reedy is proud to announce the release of the Sonic 540-M4 Competition 1:10 Brushless Motor!

Internally, the 540-M4 is very similar to that of the 540-M3 that it replaces - it produces the same linear powerband and excellent mid-range feel that have become synonymous with Reedy’s modified motors. However, changes can be good when they serve a purpose. In the case of the 540-M4, the inner bearing has been moved so that it is part of the can instead of the sensor assembly, which more precisely aligns the rotor within the magnetic field while reducing noise and vibration.

Externally, the motor has been shortened, which results in more centralized weight distribution within the chassis. The reduced length, combined with improvements to the can design, results in a 5-10g reduction in weight.

A balanced, high-strength rotor provides powerful fade-free performance. A variety of optional rotors are available to fine-tune for specific applications and tracks. Precision stainless steel ball bearings have been fitted to reliably accommodate high RPM loads.

Features

  • CNC-machined lightweight can
  • Aluminum end cap
  • Lightweight design
  • Low-resistance, silver-plated solder tabs
  • Optimized air cooling
  • Dual precision ball bearings
  • Balanced rotor
  • High-strength magnet
  • Adjustable timing
  • Completely rebuildable
  • Competition proven
  • Built to ROAR/EFRA/IFMAR specs

Specifications

Cells: 1-2S LiPo
Diameter (mm): 35.9
Length (mm): 50.3
Shaft Diameter (mm): 3.15
Weight (g): 160-170

 



Key Info:
  • Brand: Reedy
  • Part No: AS27441
  • Barcode: 784695274419
  • Fitment: Option Part
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